Carrie - I checked on line and it looks like you have an Aloe Ferox. I tried several different queries and found lots of information on planting, caring for and propagating but nothing on pruning.
You can try Imafan's suggestion and cut off the top and pot it. Is that a second "head" growing just below the bent portion of the trunk? If so cut the trunk just above the junction. Cut the curved portion of the trunk from the top. You do not want your new plant to start with a curved trunk. The head is large so you need a very large pot with good drainage. Use cactus mix or add a good bit of coarse mason sand to potting soil. If the plant is in bloom cut off the blooms. Also cut off the dried leaves. Be careful with watering. The soil needs to be moist but not so much that it causes the base to rot. If the top roots leave it in the pot for a year so it is well established before planting in your garden.
Another option is to bury a tall post on the left side of the plant and use a strip of soft cloth (t-shirt) to secure the plant to the post. You can't straighten it but you can keep it from falling over. Use a wide strip of cloth. It needs to be more of a sling than a tie. A thin strip will cut into the trunk. Loose not tight. To keep the fabric at the right height staple it to the post.
Elizabeth - or Your Majesty
Living and growing in Lafayette, La.
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant. ~Author Unknown